path: root/activerecord/lib/active_record/deprecated_associations.rb

module ActiveRecord
  module Associations # :nodoc:
    module ClassMethods
      def deprecated_collection_count_method(collection_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def #{collection_name}_count(force_reload = false)
            #{collection_name}.reload if force_reload
            #{collection_name}.size
          end
        end_eval
      end
      
      def deprecated_add_association_relation(association_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def add_#{association_name}(*items)
            #{association_name}.concat(items)
          end
        end_eval
      end
    
      def deprecated_remove_association_relation(association_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def remove_#{association_name}(*items)
            #{association_name}.delete(items)
          end
        end_eval
      end
    
      def deprecated_has_collection_method(collection_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def has_#{collection_name}?(force_reload = false)
            !#{collection_name}(force_reload).empty?
          end
        end_eval
      end
      
      def deprecated_find_in_collection_method(collection_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def find_in_#{collection_name}(association_id)
            #{collection_name}.find(association_id)
          end
        end_eval
      end
      
      def deprecated_find_all_in_collection_method(collection_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def find_all_in_#{collection_name}(runtime_conditions = nil, orderings = nil, limit = nil, joins = nil)
            #{collection_name}.find_all(runtime_conditions, orderings, limit, joins)
          end
        end_eval
      end
    
      def deprecated_collection_create_method(collection_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def create_in_#{collection_name}(attributes = {})
            #{collection_name}.create(attributes)
          end
        end_eval
      end
    
      def deprecated_collection_build_method(collection_name)# :nodoc:
        module_eval <<-"end_eval", __FILE__, __LINE__
          def build_to_#{collection_name}(attributes = {})
            #{collection_name}.build(attributes)
          end
        end_eval
      end

      def deprecated_association_comparison_method(association_name, association_class_name)
        module_eval <<-"end_eval", __FILE__, __LINE__
          def #{association_name}?(comparison_object, force_reload = false)
            if comparison_object.kind_of?(#{association_class_name})
              #{association_name}(force_reload) == comparison_object
            else
              raise "Comparison object is a #{association_class_name}, should have been \#{comparison_object.class.name}"
            end
          end
        end_eval
      end
        
      def deprecated_has_association_method(association_name)
        module_eval <<-"end_eval", __FILE__, __LINE__
          def has_#{association_name}?(force_reload = false)
            !#{association_name}(force_reload).nil?
          end
        end_eval
      end
      
      def deprecated_build_method(method_prefix, collection_name, collection_class_name, class_primary_key_name)
        module_eval <<-"end_eval", __FILE__, __LINE__
          def #{method_prefix + collection_name}(attributes = {})
            association = #{collection_class_name}.new
            association.attributes = attributes.merge({ "#{class_primary_key_name}" => id})
            association
          end
        end_eval
      end

      def deprecated_create_method(method_prefix, collection_name, collection_class_name, class_primary_key_name)
        module_eval <<-"end_eval", __FILE__, __LINE__
          def #{method_prefix + collection_name}(attributes = nil)
            #{collection_class_name}.create((attributes || {}).merge({ "#{class_primary_key_name}" => id}))
          end
        end_eval
      end
    end
  end
end